GoDaddy: "We have received complaints that you've been spamming. Give us a list of SHA-1 hashes of addresses of the people that opted in and show us how they opted in."
Considering that the spammer has the email addresses already, it would be as simple as forging a letter. Even fake a handwritten sign up form should "prove" it. No one is going to do a handwriting check to make sure it's actually correct.
Considering that the spammer has the email addresses already, it would be as simple as forging a letter. Even fake a handwritten sign up form should "prove" it. No one is going to do a handwriting check to make sure it's actually correct.